Steve Elmer ([log in to unmask]) wrote:
: Marshall I. Medoff ([log in to unmask]) wrote:
: : Help!
 
: : I have a file created on a Unix machine that I need to read on my
: : MPE/iX 5.0 machine.  The file is on a DDS Tape.  It was written using
: : a specific application program not using tar, cpio or dd.  The logical
: : record is 61 bytes with the 61st byte being a line feed (0Ah).  I have
: : tried everything in my arsenal (COBOL) to read this tape.  Can anyone
: : offer a suggestion as to what settings to use for file equations, file
: : open options, and file access options?  I am also not afraid to use
: : POSIX if someone were to offer a suggestion in that direction.
 
: It sounds like your tape is in a simple record format.  The FCOPY command
: should be able to handle this for you.  You will need a file equation to
: make FCOPY talk to the tape drive and the target disk file should have
: rec=-60,,f,ascii.
 
I was wondering if the FILE equations should look more like this:
 
  FILE t;dev=tape;cctl;rec=-60,,f,ascii
 
  BUILD tapedata;cctl;rec=-60,,f,ascii;disc=10000
 
  FCOPY from=*t;to=tapedata
 
: I have never done this myself, so I provide no warranty on this advice.
 
  and I also provide no warranty.
 
  I remember someone talking about odd byte records on tape being not
  a good thing, maybe someelse can respond.
 
: From the shell, you may also be able to do this by creating a device link
: from /dev/tape to your tape drive.  Then you could probably do
 
:       cat /dev/tape >myfile
 
: Again, I haven't done this and I don't know if that's the proper idiom.
 
: Steve
 
To make a device link from the shell, try: mknod /dev/tape c 0 7.  7 is
the LDEV number of your tape.
 
Have fun and please report your success or failure.
 
 
Rick Ehrhart
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